Messing around with the SVG mode line

Still not sure I like it.  May ditch it soon.
Stop trying to load packages I do not have

That is, I don't have them on iris.  And they are ones that I never use anyhow.
Configure org-attach and org-capture

Two things that I really ought to learn how to use better.
Calendar and diary config
Make sure git-gutter indicators are not inverse video
Add bookmarks file to .gitignore